﻿#region License, Terms and Author(s)
//
// ELMAH - Error Logging Modules and Handlers for ASP.NET
// Copyright (c) 2004-12 Atif Aziz. All rights reserved.
//
//  Author(s):
//
//      James Driscoll, mailto:jamesdriscoll@btinternet.com
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#endregion

[assembly: Elmah.Scc("$Id: $")]

namespace Elmah.Analysis
{
    #region Imports

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Xml.Linq;

    #endregion

    internal static class ExtensionMethods
    {
        public static IEnumerable<T> ToIEnumberable<T>(this T item) where T : class
        {
            if (item == null)
                yield break;

            yield return item;
        }

        public static string GetSafeAttributeValue(this XElement element, string name)
        {
            if (element == null)
                return String.Empty;

            var attribute = element.Attribute(name);
            return attribute == null ? String.Empty : attribute.Value;
        }

        public static IEnumerable<string> SplitToTrimmedUpperInvariant(this string text)
        {
            return text.Split(',').Select(s => s.Trim().ToUpperInvariant());
        }
    }
}